CA2258303A1 - Fork for transmission with a splined shaft - Google Patents
Fork for transmission with a splined shaft Download PDFInfo
- Publication number
- CA2258303A1 CA2258303A1 CA002258303A CA2258303A CA2258303A1 CA 2258303 A1 CA2258303 A1 CA 2258303A1 CA 002258303 A CA002258303 A CA 002258303A CA 2258303 A CA2258303 A CA 2258303A CA 2258303 A1 CA2258303 A1 CA 2258303A1
- Authority
- CA
- Canada
- Prior art keywords
- housing
- fork
- immobilizing
- push
- button
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Abandoned
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D1/00—Couplings for rigidly connecting two coaxial shafts or other movable machine elements
- F16D1/10—Quick-acting couplings in which the parts are connected by simply bringing them together axially
- F16D1/108—Quick-acting couplings in which the parts are connected by simply bringing them together axially having retaining means rotating with the coupling and acting by interengaging parts, i.e. positive coupling
- F16D1/116—Quick-acting couplings in which the parts are connected by simply bringing them together axially having retaining means rotating with the coupling and acting by interengaging parts, i.e. positive coupling the interengaging parts including a continuous or interrupted circumferential groove in the surface of one of the coupling parts
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D3/00—Yielding couplings, i.e. with means permitting movement between the connected parts during the drive
- F16D3/16—Universal joints in which flexibility is produced by means of pivots or sliding or rolling connecting parts
- F16D3/26—Hooke's joints or other joints with an equivalent intermediate member to which each coupling part is pivotally or slidably connected
- F16D3/38—Hooke's joints or other joints with an equivalent intermediate member to which each coupling part is pivotally or slidably connected with a single intermediate member with trunnions or bearings arranged on two axes perpendicular to one another
- F16D3/382—Hooke's joints or other joints with an equivalent intermediate member to which each coupling part is pivotally or slidably connected with a single intermediate member with trunnions or bearings arranged on two axes perpendicular to one another constructional details of other than the intermediate member
- F16D3/387—Fork construction; Mounting of fork on shaft; Adapting shaft for mounting of fork
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D1/00—Couplings for rigidly connecting two coaxial shafts or other movable machine elements
- F16D1/10—Quick-acting couplings in which the parts are connected by simply bringing them together axially
- F16D2001/103—Quick-acting couplings in which the parts are connected by simply bringing them together axially the torque is transmitted via splined connections
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S464/00—Rotary shafts, gudgeons, housings, and flexible couplings for rotary shafts
- Y10S464/901—Rapid attachment or release
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T403/00—Joints and connections
- Y10T403/32—Articulated members
- Y10T403/32254—Lockable at fixed position
- Y10T403/32262—At selected angle
- Y10T403/32319—At selected angle including pivot stud
- Y10T403/32327—At selected angle including pivot stud including radially spaced detent or latch component
- Y10T403/32336—Engaging notch or recess in outer periphery of component
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Braking Arrangements (AREA)
- Gear-Shifting Mechanisms (AREA)
- Seats For Vehicles (AREA)
- Packaging Of Annular Or Rod-Shaped Articles, Wearing Apparel, Cassettes, Or The Like (AREA)
- Snaps, Bayonet Connections, Set Pins, And Snap Rings (AREA)
- Lock And Its Accessories (AREA)
Abstract
The splined shaft is locked in the splined seat of the fork by means of a push-button immobilizing element (31) designed to engage tangentially in the said annular recess; the immobilizing element (31) is accommodated in a housing (29) formed in the base (23) of the fork and is stressed elastically by a spring (33) in the immobilizing position, in which it projects, so that it can be pressed manually in order to unlock it; around the said housing (29), the base (23) of the fork has an enlarged portion (27) in which a cavity (37) is formed, within which the push-button (31A) of the immobilizing element projects when it is in the immobilizing position, while still remaining enclosed within the said cavity (37).
Description
_A 0225X303 1998-12~
WO 98/0695~1 ~ . - . - - . . P~CT~g71~01'93. . - -~ ~ ~ ~ ~ ~ ~ ~ . .
~ ~ ~ -- -- -- ~ -- ~ -- ~ ~ - . .
F~RK FOR TRANS~SSTON WTr~ A SPL ~3 S~AFT
D~SCRI~TION
The invent~on relates to a specif-c im~rovemen~
designed _o prevent 2ccidents - in compliance with current legislation - with a view to avoiding the presence cf projections, which could constitute a hazard by catching accidentally, in rotating members of a mechanical transmission, particularly in a for~ of a universal joint fo_ a mechanical transm-ssion. These transmissions ccmprise a splined shaft with an annular recess for axial loc~ing in the splined seat of the fork by means of a push-button immobilizing element, desisned to engage tangentially in the said annular recess, .he immobilizing element being accommodated in a housing formed in the base of the for~i the said push-button immobilizing element is stressed elastically in the immobilizing position, in which it projects, and can be pressed down manually in order to unloc~ it. f- ~
In order to avoid the risk of the immobilizing element catching when it projects in the immobilizing position, açe~_~, t~ l},~ nv~n~io~, around the said housin~, the base of the fork has an enlarged portion _ ~ - ~~
C~-ming a cavity:~the said immobilizing element p.ojects within the said cavity when it is in the immobilizin~
position, while still remaining enclosed within the said cavity; the cavity is large enough to allow the said element to be pressed down ~n order to unlock it.
In an advantageous embodiment, the immobilizing element is stressed to make it project out of the said housing by a spring inside the housing, which is in the f~trm of a blind hole. The immobiliz~ng element can be held in its housing by means of at least one stop piece 3~ formed in the said housing, while the spring reacts against a plate held in the mouth of the housing, for example by plastic defcrmations made in the material along the front edge of the szid housing.
The said ca~lity in the enlarged portion can be ~0 essentially dihedrzl in shape with two surfaces wnich are -~< îk~ ~iCC~J~ ~~ /t L ~ L~ L~ P~' ~ 7 _ _ ~ 'Ll_ C ., ~ Ç' C; t 7 A~ 3 S'~ c~
.... ... .. . . . . .. . . .. .. . ..
W098/0695~ PCT~T97/00193 approximately at right angles to each other and with two sides which follow the external profile of the said enlarged portion which is approximately in the shape of an arc of a circle; the components are designed such that the push-button part of the said immobilizing element is always contained inside the profile of the said sides.
A better understanding of the invention will be gained by following the description and the appended drawing, which shows a non-limiting practical example of the said invention. In the drawing:
Figs l and 2; 3 and 4; 5 and 6 show, in partially sectioned side views and in cross-sections on II-II in Fig. l, IV-IV in Fig. 3 and VI-VI in Fig. 5, known embodiments of the fork;
Fig. 7 shows a partially sectioned side view of the fork according to the invention;
Fig. 8 shows a cross-section on VIII-VIII in Fig. 7 with the immobilizing element in the active, i.e.
immobilizing, state;
Fig. 9 is similar to Fig. 8 but shows the immobi-lizing element in the unlocked state;
Fig. lO shows a localized view on the plane X-X
in Fig. 7;
Fig. ll shows 2 partial localized cross-section on XI-XI in Fig. lO; and Figs 12 and 13 show a variation on the position-ing of the push-button, in a side view and in the local-ized view on XIII-XIII in Fig. 12.
Figs l to 6 show forks l having essentially the same morphology in the various figures: a splined seat 3 for accommodating the splined shaft, which is immobilized by means of an immobilizing element 5 accommodated in a housing in the base lA of the fork; this housing is essentially tangential to the splined seat 3 for the splined shaft; the immobilizing element 5 can slide in the said housing and engage with the seat 3 in the immobilizing state when it is stressed by a spring 7; by pushing in the direction of the arrow fl against the action of the spring 7, the immobilizing element 5 is CA 022~8303 1998-12-1~
, . , ~ ~ . .
W098/06954 PCT~T97/00193 moved into the unlocked state on account of the fact that it ceases to engage with the seat as a result of the difference in diameter between that part of the immobi-lizing element 5 that slides in the housing and the narrower part which is enclosed by the spring 7 and constitutes the push-button, being actuated in the direction of the arrow fl by the operator with the finger of one hand when he wishes to disengage the shaft from the fork. The pro3ecting pin part of the immobilizing element 5, which is enclosed by the spring 7, constitutes a hazardous projection since it could catch during rotation and drag an item of clothing, a piece of fabric, or some other article, which could then cause injury to the operator if his concentration has inadvertently lapsed. Figs 5 and 6 illustrate one solution to this disadvantage consisting in providing an annular control member 9 which surrounds the base of the fork and the inside of which is shaped so as to cover the projecting part of the immobilizing element 5 while still allowing this immobilizing member to be moved (against the action of the spring 7) by rotating the member 9 so that a profile 9A inside the said member 9 acts on the push-button, as can be clearly seen in Fig. 6.
In order to solve the abovementioned problem in a simpler manner and avoid the disadvantages associated with it, a solution such as that shown in Figs 7 to ll is proposed. In this embodiment the fork 21 has a roughly asymmetrical enlarged portion 27 in its base 23 - in which the splined seat 25 for the splined shaft is formed - and it is in this enlarged portion 27 that the housing 29 for the push-button immobilizing element 31 is formed;
the said housing 29 is a through housing and is tangen-tial to the splined seat 25 and is formed in the shape of a cylinder, with an annular stop piece 27A at the upper '5 exit edge when looking at Figs 8 and 9. Accommodated in the housing 29 is a compression spring 33 which is at least also partially acco~modated in a blind axial hole formed in the bottom of the immohilizing element 3l, at the opposite end to the extension forming the push-button CA 022~8303 1998-12-1~
~ .. ... . . , . ... . . .. .. . .... ~
W0~8/OG9~.~ PCT~T97/00193 3lA which is provided in the immobilizing element 31 in order to move it manually against the elastic stressing action of the spring 33. The spring 33 reacts against a plate 34 which is held by stop pieces 35 formed along the edge of the hole constituting the housing 29; these stop pieces are produced by plastic deformation of the material of the fork 21, 23. When the shaft is to be unlocked from its splined seat 25, the area of the push-button 3lA which has a smaller diameter is made to engage iO with the seat, rather than the part of the immobilizing member 31 with the larger diameter; the manual action is performed in the direction of the arrow fl in a manner similar to that used in the known embodiments of Figs 1 to 4 and indirectly with the embodiment of Figs 5 and 6.
The immobilizing position of the immobilizing element 31 in the housing 29 is defined by the annular stop piece 27A which is machined in the housing 29.
The plate 34 has a cylindrical peripheral edge 34A which acts as a guide to ensure that the plate 34 slides smoothly in the cylindrical housing 29, without the risk of catching.
The fact that the housing 29 is made in the form of a through housing means that it is possible to act on the plate 34 in the event of the push-button element 31, 31A jamming in the housing as a result of any deforma-tions the said element may have undergone during use; it is thus possible to take the necessary steps in order to avoid problems and hazardous situations.
The push-button 31A for controlling the immobi-lizing element 31 projects inside a cavity 37 formed inthe enlarged portion 27; this cavity 37 is essentially defined by two surfaces 37A and 37B which are essentially almost at right angles to each other and by two sides 27A
and 27B which follow the arched convex profile 27P that externally defines the enlarged portion 27. The extent to which the push-button part 31A of the immobilizing element 31 projects, in the immobilizing state shown in Fig. 8, is contained well inside the cavity 37 and is even within the line Y-Y, indicated by dashes in Fig. 8, CA 022~8303 1998-12-1~
W098/~954 PCTnr97/00193 that joins the external edges of the two surfaces 37A and 37B.
Under these circumstances, even though the push-button for controlling the immobilizing element projects, the fork does not have any elements that could catch; on the contrary, the control push-button 31A is fully contained inside the cavity 37; with the cavity 37 and the enlarged portion 27 in which this cavity is formed there is virtually no risk of any elements catching on clothing or some other item, and thus the possibility of causing accidental injury to operators is eliminated.
The width of the cavity 37 between the two sides 27A and 27B is large enough to allow the operator to use one of his fingers (or his thumb) to act on the pin 31A
of the immobilizing element in order to unlock the element against the action of the spring 33.
Although it is possible to have a cavity 37 that is relatively narrow but still wide enough to allow the pin 3lA which is positioned symmetrically therein to be operated, in the embodiment illustrated (see in particu-lar Figs 7, 8, 12 and 13) the cavity 37 delimited by the sidès 27A and 27B is relatively wide. The housing 29 can then be formed in one or other of two (or more) positions along the axis of the seat for the splined shaft; this then makes it possible to position the shaft even when it has annular immobilizing recesses positioned at different distances from the end of the said shaft.
It should be understood that the drawing shows only one example given solely by way of practical demon-stration of the invention and that it is possible to varythe forms and arrangements of the latter without thereby departing from the concept underlying the said invention.
Any reference numerals in the appended claims have the purpose of facilitating the reading of the claims with reference to the description and the drawing and do not restrict the scope of protection represented by the claims.
CA 022~8303 1998-12-1 .
WO 98/0695~1 ~ . - . - - . . P~CT~g71~01'93. . - -~ ~ ~ ~ ~ ~ ~ ~ . .
~ ~ ~ -- -- -- ~ -- ~ -- ~ ~ - . .
F~RK FOR TRANS~SSTON WTr~ A SPL ~3 S~AFT
D~SCRI~TION
The invent~on relates to a specif-c im~rovemen~
designed _o prevent 2ccidents - in compliance with current legislation - with a view to avoiding the presence cf projections, which could constitute a hazard by catching accidentally, in rotating members of a mechanical transmission, particularly in a for~ of a universal joint fo_ a mechanical transm-ssion. These transmissions ccmprise a splined shaft with an annular recess for axial loc~ing in the splined seat of the fork by means of a push-button immobilizing element, desisned to engage tangentially in the said annular recess, .he immobilizing element being accommodated in a housing formed in the base of the for~i the said push-button immobilizing element is stressed elastically in the immobilizing position, in which it projects, and can be pressed down manually in order to unloc~ it. f- ~
In order to avoid the risk of the immobilizing element catching when it projects in the immobilizing position, açe~_~, t~ l},~ nv~n~io~, around the said housin~, the base of the fork has an enlarged portion _ ~ - ~~
C~-ming a cavity:~the said immobilizing element p.ojects within the said cavity when it is in the immobilizin~
position, while still remaining enclosed within the said cavity; the cavity is large enough to allow the said element to be pressed down ~n order to unlock it.
In an advantageous embodiment, the immobilizing element is stressed to make it project out of the said housing by a spring inside the housing, which is in the f~trm of a blind hole. The immobiliz~ng element can be held in its housing by means of at least one stop piece 3~ formed in the said housing, while the spring reacts against a plate held in the mouth of the housing, for example by plastic defcrmations made in the material along the front edge of the szid housing.
The said ca~lity in the enlarged portion can be ~0 essentially dihedrzl in shape with two surfaces wnich are -~< îk~ ~iCC~J~ ~~ /t L ~ L~ L~ P~' ~ 7 _ _ ~ 'Ll_ C ., ~ Ç' C; t 7 A~ 3 S'~ c~
.... ... .. . . . . .. . . .. .. . ..
W098/0695~ PCT~T97/00193 approximately at right angles to each other and with two sides which follow the external profile of the said enlarged portion which is approximately in the shape of an arc of a circle; the components are designed such that the push-button part of the said immobilizing element is always contained inside the profile of the said sides.
A better understanding of the invention will be gained by following the description and the appended drawing, which shows a non-limiting practical example of the said invention. In the drawing:
Figs l and 2; 3 and 4; 5 and 6 show, in partially sectioned side views and in cross-sections on II-II in Fig. l, IV-IV in Fig. 3 and VI-VI in Fig. 5, known embodiments of the fork;
Fig. 7 shows a partially sectioned side view of the fork according to the invention;
Fig. 8 shows a cross-section on VIII-VIII in Fig. 7 with the immobilizing element in the active, i.e.
immobilizing, state;
Fig. 9 is similar to Fig. 8 but shows the immobi-lizing element in the unlocked state;
Fig. lO shows a localized view on the plane X-X
in Fig. 7;
Fig. ll shows 2 partial localized cross-section on XI-XI in Fig. lO; and Figs 12 and 13 show a variation on the position-ing of the push-button, in a side view and in the local-ized view on XIII-XIII in Fig. 12.
Figs l to 6 show forks l having essentially the same morphology in the various figures: a splined seat 3 for accommodating the splined shaft, which is immobilized by means of an immobilizing element 5 accommodated in a housing in the base lA of the fork; this housing is essentially tangential to the splined seat 3 for the splined shaft; the immobilizing element 5 can slide in the said housing and engage with the seat 3 in the immobilizing state when it is stressed by a spring 7; by pushing in the direction of the arrow fl against the action of the spring 7, the immobilizing element 5 is CA 022~8303 1998-12-1~
, . , ~ ~ . .
W098/06954 PCT~T97/00193 moved into the unlocked state on account of the fact that it ceases to engage with the seat as a result of the difference in diameter between that part of the immobi-lizing element 5 that slides in the housing and the narrower part which is enclosed by the spring 7 and constitutes the push-button, being actuated in the direction of the arrow fl by the operator with the finger of one hand when he wishes to disengage the shaft from the fork. The pro3ecting pin part of the immobilizing element 5, which is enclosed by the spring 7, constitutes a hazardous projection since it could catch during rotation and drag an item of clothing, a piece of fabric, or some other article, which could then cause injury to the operator if his concentration has inadvertently lapsed. Figs 5 and 6 illustrate one solution to this disadvantage consisting in providing an annular control member 9 which surrounds the base of the fork and the inside of which is shaped so as to cover the projecting part of the immobilizing element 5 while still allowing this immobilizing member to be moved (against the action of the spring 7) by rotating the member 9 so that a profile 9A inside the said member 9 acts on the push-button, as can be clearly seen in Fig. 6.
In order to solve the abovementioned problem in a simpler manner and avoid the disadvantages associated with it, a solution such as that shown in Figs 7 to ll is proposed. In this embodiment the fork 21 has a roughly asymmetrical enlarged portion 27 in its base 23 - in which the splined seat 25 for the splined shaft is formed - and it is in this enlarged portion 27 that the housing 29 for the push-button immobilizing element 31 is formed;
the said housing 29 is a through housing and is tangen-tial to the splined seat 25 and is formed in the shape of a cylinder, with an annular stop piece 27A at the upper '5 exit edge when looking at Figs 8 and 9. Accommodated in the housing 29 is a compression spring 33 which is at least also partially acco~modated in a blind axial hole formed in the bottom of the immohilizing element 3l, at the opposite end to the extension forming the push-button CA 022~8303 1998-12-1~
~ .. ... . . , . ... . . .. .. . .... ~
W0~8/OG9~.~ PCT~T97/00193 3lA which is provided in the immobilizing element 31 in order to move it manually against the elastic stressing action of the spring 33. The spring 33 reacts against a plate 34 which is held by stop pieces 35 formed along the edge of the hole constituting the housing 29; these stop pieces are produced by plastic deformation of the material of the fork 21, 23. When the shaft is to be unlocked from its splined seat 25, the area of the push-button 3lA which has a smaller diameter is made to engage iO with the seat, rather than the part of the immobilizing member 31 with the larger diameter; the manual action is performed in the direction of the arrow fl in a manner similar to that used in the known embodiments of Figs 1 to 4 and indirectly with the embodiment of Figs 5 and 6.
The immobilizing position of the immobilizing element 31 in the housing 29 is defined by the annular stop piece 27A which is machined in the housing 29.
The plate 34 has a cylindrical peripheral edge 34A which acts as a guide to ensure that the plate 34 slides smoothly in the cylindrical housing 29, without the risk of catching.
The fact that the housing 29 is made in the form of a through housing means that it is possible to act on the plate 34 in the event of the push-button element 31, 31A jamming in the housing as a result of any deforma-tions the said element may have undergone during use; it is thus possible to take the necessary steps in order to avoid problems and hazardous situations.
The push-button 31A for controlling the immobi-lizing element 31 projects inside a cavity 37 formed inthe enlarged portion 27; this cavity 37 is essentially defined by two surfaces 37A and 37B which are essentially almost at right angles to each other and by two sides 27A
and 27B which follow the arched convex profile 27P that externally defines the enlarged portion 27. The extent to which the push-button part 31A of the immobilizing element 31 projects, in the immobilizing state shown in Fig. 8, is contained well inside the cavity 37 and is even within the line Y-Y, indicated by dashes in Fig. 8, CA 022~8303 1998-12-1~
W098/~954 PCTnr97/00193 that joins the external edges of the two surfaces 37A and 37B.
Under these circumstances, even though the push-button for controlling the immobilizing element projects, the fork does not have any elements that could catch; on the contrary, the control push-button 31A is fully contained inside the cavity 37; with the cavity 37 and the enlarged portion 27 in which this cavity is formed there is virtually no risk of any elements catching on clothing or some other item, and thus the possibility of causing accidental injury to operators is eliminated.
The width of the cavity 37 between the two sides 27A and 27B is large enough to allow the operator to use one of his fingers (or his thumb) to act on the pin 31A
of the immobilizing element in order to unlock the element against the action of the spring 33.
Although it is possible to have a cavity 37 that is relatively narrow but still wide enough to allow the pin 3lA which is positioned symmetrically therein to be operated, in the embodiment illustrated (see in particu-lar Figs 7, 8, 12 and 13) the cavity 37 delimited by the sidès 27A and 27B is relatively wide. The housing 29 can then be formed in one or other of two (or more) positions along the axis of the seat for the splined shaft; this then makes it possible to position the shaft even when it has annular immobilizing recesses positioned at different distances from the end of the said shaft.
It should be understood that the drawing shows only one example given solely by way of practical demon-stration of the invention and that it is possible to varythe forms and arrangements of the latter without thereby departing from the concept underlying the said invention.
Any reference numerals in the appended claims have the purpose of facilitating the reading of the claims with reference to the description and the drawing and do not restrict the scope of protection represented by the claims.
CA 022~8303 1998-12-1 .
Claims (5)
1. Fork for a transmission comprising 2 splined shaft with an annular recess for axial locking in the splined seat of the fork by means of a push-button immobilizing element designed to engage tangentially in the said annular recess, the immobilizing element being accommodated in a housing formed in the base of the fork, and the said push-button immobilizing element being stressed elastically in the immobilizing position, in which it projects, so that it can be pressed down manually in order to unlock it, wherein around the said housing the base of the fork has an enlarged portion in which a cavity is formed, characterised in that the push-button (31A) of the said immobilizing element (31) projects when it is in the immobilizing position, while still remaining enclosed within the said cavity (37) which is large enough to allow the said element to be pressed down in order to unlock it.
2. Fork according to Claim l, characterized in that the immobilizing element (31) is stressed to make it project out of the said housing (29) by a spring (33) inside the housing (29).
3. Fork according to Claim 2, characterized in that the immobilizing element (31) is held in its housing (29) by means of at least one stop piece (27A) projecting into the said housing (29), while the spring (33) rests on a plate (34) which is held by plastic deformations made in the material along the edge of the housing (29); the said plate (34) being guided slidably in the housing (29).
4. Fork according to Claim 3, characterized in that the said plate (34) has a peripheral edge (34A) that acts as a guide.
5. Fork according to Claim 1, characterized in that the said cavity (37) in the enlarged portion is essentially dihedral in shape, with two surfaces (37A, 37B) which are approximately at right angles to each other and with two sides (27A, 27B) which follow the curved external profile (27P) of the said enlarged portion; the push-button part (31A) of the said immobilizing element (31) being always contained inside the profile of the said sides (27A, 27B).
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| IT96FI000197A IT1286698B1 (en) | 1996-08-14 | 1996-08-14 | ONE FORK WITH ACCIDENT PREVENTION ARRANGEMENT, FOR SPLINED SHAFT TRANSMISSIONS |
| ITFI96A000197 | 1996-08-14 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA2258303A1 true CA2258303A1 (en) | 1998-02-19 |
Family
ID=11351787
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA002258303A Abandoned CA2258303A1 (en) | 1996-08-14 | 1997-07-28 | Fork for transmission with a splined shaft |
Country Status (9)
| Country | Link |
|---|---|
| US (1) | US6238295B1 (en) |
| EP (1) | EP0918949B1 (en) |
| AT (1) | ATE225471T1 (en) |
| BR (1) | BR9711073A (en) |
| CA (1) | CA2258303A1 (en) |
| DE (1) | DE69716090T2 (en) |
| ES (1) | ES2183208T3 (en) |
| IT (1) | IT1286698B1 (en) |
| WO (1) | WO1998006954A1 (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA2609773C (en) * | 2005-05-25 | 2014-07-08 | Weasler Engineering, Inc. | Yoke with integral bridge and hub |
| WO2016199807A1 (en) * | 2015-06-09 | 2016-12-15 | 日本精工株式会社 | Yoke for universal joints |
| FR3063785B1 (en) * | 2017-03-13 | 2021-04-16 | Safran Electronics & Defense | DEVICE FOR CONNECTING AN END OF A FIRST SHAFT TO AN END OF A SECOND SHAFT AND ASSOCIATED TRANSMISSION ASSEMBLY |
| CN113339394A (en) * | 2021-05-18 | 2021-09-03 | 王润昭 | Novel universal ball head connecting piece of five metals |
Family Cites Families (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2448278A (en) * | 1944-09-21 | 1948-08-31 | Minneapolis Moline Power Co | Power transmission coupling |
| US2696089A (en) * | 1950-07-14 | 1954-12-07 | Case Co J I | Power take-off construction |
| NL7005054A (en) * | 1970-04-08 | 1971-10-12 | ||
| US4091640A (en) * | 1976-08-19 | 1978-05-30 | Rockwell International Corporation | Power drive yoke |
| IT1167944B (en) * | 1981-07-14 | 1987-05-20 | Edi Bondioli | PROTECTION DEVICE OF THE END FORK OF A TRANSMISSION CARDANIC SHAFT FOR AGRICULTURAL MACHINES AND OTHER |
| IT1201290B (en) * | 1985-05-10 | 1989-01-27 | Edi Bondioli | MANEUVER OF THE RAPID TANGENTIAL BUTTON ATTACHMENT FOR GROOVES WITH GROOVED PROFILES, IN PARTICULAR ON THE FORKS OF CARDANIC SHAFTS FOR AGRICULTURE |
| IT1241740B (en) * | 1990-06-22 | 1994-02-01 | Edi Bondioli | PROTECTION FOR AN EXTREMITY FORK OF A CARDANIC TREE |
| DE4105794A1 (en) * | 1991-02-23 | 1992-09-03 | Walterscheid Gmbh Jean | Locking mechanism for securing sleeve on journal shaft - uses screw to engage groove cut across splines of shaft |
| DE4106096C1 (en) * | 1991-02-27 | 1992-10-15 | Jean Walterscheid Gmbh, 5204 Lohmar, De | |
| US5580184A (en) * | 1995-04-28 | 1996-12-03 | The Torrington Company | Angular adjustable clamp yoke |
-
1996
- 1996-08-14 IT IT96FI000197A patent/IT1286698B1/en active IP Right Grant
-
1997
- 1997-07-28 BR BR9711073A patent/BR9711073A/en not_active IP Right Cessation
- 1997-07-28 AT AT97935757T patent/ATE225471T1/en not_active IP Right Cessation
- 1997-07-28 DE DE69716090T patent/DE69716090T2/en not_active Expired - Lifetime
- 1997-07-28 US US09/214,350 patent/US6238295B1/en not_active Expired - Fee Related
- 1997-07-28 CA CA002258303A patent/CA2258303A1/en not_active Abandoned
- 1997-07-28 EP EP97935757A patent/EP0918949B1/en not_active Expired - Lifetime
- 1997-07-28 WO PCT/IT1997/000193 patent/WO1998006954A1/en active IP Right Grant
- 1997-07-28 ES ES97935757T patent/ES2183208T3/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| WO1998006954A1 (en) | 1998-02-19 |
| US6238295B1 (en) | 2001-05-29 |
| DE69716090T2 (en) | 2003-05-22 |
| EP0918949A1 (en) | 1999-06-02 |
| DE69716090D1 (en) | 2002-11-07 |
| ES2183208T3 (en) | 2003-03-16 |
| ITFI960197A1 (en) | 1998-02-14 |
| IT1286698B1 (en) | 1998-07-15 |
| ATE225471T1 (en) | 2002-10-15 |
| BR9711073A (en) | 1999-08-17 |
| EP0918949B1 (en) | 2002-10-02 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| FZDE | Discontinued |